atom/atom — pull request #4152 by nathansobo (2014-11-11 22:17:28+00:00)
Title: Add private API for adding classes to highlight regions for backward compatibility

In https://github.com/atom/bracket-matcher/pull/82, we're switching the bracket matcher to use highlight decorations rather than hand-crafted views. In order to be backwards-forwards compatible, we need to add the `.bracket-matcher` class on the regions directly until people have a chance to upgrade.